Title :
A broadband radiometer configuration at 94GHz in planar technology
Author :
Rebollo, A. ; Maestrojuán, I. ; Gonzalo, R. ; Ederra, I.
Author_Institution :
Antenna Group, Public Univ. of Navarra, Pamplona, Spain
Abstract :
This paper describes a broadband radiometer receiver configuration in planar technology working around 94 GHz. This differential configuration allows reducing gain and noise temperature fluctuations of the amplifiers themselves in a wide bandwidth, which improves the sensitivity of these systems. In addition to this, the studied configuration also allows obtaining as an output a reference signal amplified in the same way that the unknown RF signal. Therefore, the system can be easily calibrated. The different components of the RF front-end of the receiver have been optimized for an operational bandwidth of 80-100 GHz.
Keywords :
millimetre wave amplifiers; millimetre wave receivers; radiometers; RF front-end; RF signal; amplifiers; bandwidth 80 GHz to 100 GHz; broadband radiometer receiver configuration; frequency 94 GHz; noise temperature fluctuations; planar technology; reference signal; Bandwidth; Couplers; Microwave radiometry; Noise; Radio frequency; Receivers; Slot antennas; Radiometer; Vivaldi antenna; planar technology; pseudocorrelation;
Conference_Titel :
Microwave Workshop Series on Millimeter Wave Integration Technologies (IMWS), 2011 IEEE MTT-S International
Conference_Location :
Sitges
Print_ISBN :
978-1-61284-963-8
DOI :
10.1109/IMWS3.2011.6061895
